From WikiLeaks

The CRS is a Congressional "think tank" with a staff of around 700. Reports are commissioned by members of Congress on topics relevant to current political events. Despite CRS costs to the tax payer of over $100M a year, its electronic archives are, as a matter of policy, not made available to the public.

Individual members of Congress will release specific CRS reports if they believe it to assist them politically, but CRS archives as a whole are firewalled from public access.

This report was obtained by Wikileaks staff from CRS computers accessible only from Congressional offices.

This report focuses primarily on the NAAQS implementation process for designating geographical nonattainment areas with respect to the tightening of the PM2.5 standards under the 2006 particulates NAAQS, including comparisons with the final designations under the 1997 PM2.5 NAAQS. The EPA is not requiring new nonattainment designations for PM10. Also included is a brief overview of states' subsequent obligations for developing and submitting implementation plans (SIPs) for attaining or maintaining compliance with the NAAQS. Appendix A includes a table displaying a state and county breakdown of designated nonttainment areas proposed by the states and by EPA for the 2006 PM2.5 NAAQS, as well as the final EPA designations table for the 1997 PM2.5 NAAQS.